AutoCodes – Honda – P1114 Honda

P1114 Honda Code - Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage

Quick Answer

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. Common causes include Faulty Engine Coolant Temperature (ECT) sensor, Low engine coolant level, Engine Coolant Temperature (ECT) sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1114 Honda indicates Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage.
Common causes: Common causes include Faulty Engine Coolant Temperature (ECT) sensor, Low engine coolant level, Engine Coolant Temperature (ECT) sensor harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,675

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1114 Honda Description

The Engine Coolant Temperature (ECT) sensor is used to detect the engine coolant temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine coolant temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P1114 Honda - Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage - AutoCodes.com — P1114 Honda Code - Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1114 Honda?

Faulty Engine Coolant Temperature (ECT) sensor
Low engine coolant level
Engine Coolant Temperature (ECT) sensor harness is open or shorted
Engine Coolant Temperature (ECT) sensor electrical circuit poor connection
Faulty engine coolant thermostat

How to Fix the DTC P1114 Honda?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1114 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1114 Honda Code

1. What does the OBDII code P1114 mean on a Honda vehicle?

P1114 indicates an intermittent low voltage issue in the Engine Coolant Temperature (ECT) sensor circuit, which can affect the vehicle's engine performance and emissions.

2. What are the symptoms of a P1114 code in a Honda?

Common symptoms include poor fuel efficiency, difficulty starting the engine, rough idling, and the check engine light turning on.

3. What causes the P1114 code to appear in a Honda?

Possible causes include a faulty ECT sensor, damaged or corroded wiring, a loose or dirty electrical connector, or issues with the vehicle's powertrain control module (PCM).

4. Can I drive my Honda with a P1114 code?

While the vehicle may still run, driving with a P1114 code can lead to poor performance and potential damage to the engine or emissions system, so it’s best to address it promptly.

5. How do I diagnose the P1114 code on my Honda?

Start by inspecting the ECT sensor and its wiring for damage or corrosion. Use a multimeter to test the sensor's resistance and voltage, and check for proper connection to the PCM.

6. How do I fix the P1114 code in a Honda?

Repairs may include replacing the ECT sensor, repairing or replacing damaged wiring, cleaning the sensor connector, or updating/reprogramming the PCM if needed.

7. What tools are needed to fix a P1114 code?

You may need an OBDII scanner, a multimeter, basic hand tools, and possibly replacement parts like an ECT sensor or wiring.

8. How much does it cost to repair the P1114 code on a Honda?

Costs vary but typically range from $50 to $200 for parts and labor, depending on whether a sensor replacement or wiring repair is required.

9. Can a faulty thermostat cause a P1114 code in a Honda?

Yes, a stuck-open thermostat can cause irregular coolant temperatures, potentially triggering the P1114 code.

10. Will clearing the P1114 code with a scanner fix the issue?

Clearing the code might temporarily turn off the check engine light, but the underlying issue must be repaired to prevent the code from returning.

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